1. Inventions Promote Change

2. Thomas Edison
Established the world’s first research and development (R&D) lab
Most important invention: Light Bulb
Changed industry & everyday life
Machines in factories & appliances in homes
Allowed manufacturers to produce goods wherever
Industry could grow as never before
Also invented the Phonograph and motion picture

3. Other Inventions Christopher Sholes- typewriter (1867)
Alexander Graham Bell- telephone (1876)
Worldwide communications network
Both created new jobs for women
5% of women working in 1870
40% of women working in 1910